I have found that I prefer to 'declare' images rather than create them. When producing figures for papers, I largely prefer to use the tikz package for LaTeX or the 'dot' program from graphviz to do so. Any time I try to manually create something, it looks very amateurish and stupid whereas tools that generate an image from some kind of description tend to do a great job. I encourage anyone to create new programs that generate visualizations from user input.

I have been interested in giving this a try myself. Unfortunatly I am always put off by my inability to correctly craft a search to find stuff on it. I always wind up waist deep in fractal backgrounds and screen savers.

One could argue that the entire demoscene falls under the umbrella of computer generated artwork. They've been at this for decades. Check out the list of the most popular productions at pouët.net, it is ridiculously impressive. Especially considering the size constraints.

If you can't run them on your computer, there are HD video links on the production pages.